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Flexible microwave catheters for natural or artificial lumens

  • US 10,226,296 B2
  • Filed: 12/28/2015
  • Issued: 03/12/2019
  • Est. Priority Date: 04/08/2011
  • Status: Active Grant
First Claim
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1. A coupler for coupling a flexible coaxial cable, a fluid cooling system and an outer sheath of a catheter, the coupler comprising:

  • a fluid coupler body including;

    a fluid inlet configured to operably couple to a source of cooling fluid and receive fluid therefrom;

    a fluid outlet configured to operably couple to a fluid discharge; and

    an outer sheath coupler forming an aperture for coupling with an outer sheath of a catheter while forming a fluid-tight seal therewith; and

    a fluid sealing system housed in the fluid coupler body including;

    a distal sealing diaphragm configured to form a fluid-tight seal about an outer surface of an inflow lumen and a fluid-tight seal with an interior surface of the fluid coupler body defining an outflow plenum in fluid communication with the fluid outlet; and

    a proximal sealing diaphragm configured to form a fluid-tight seal about an outer surface of a coaxial cable and a fluid-tight seal with an interior surface of the fluid coupler body thereby forming an inflow plenum in fluid communication with the fluid inlet.

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